- present participle of deteriorate.
deteriorating
Americanadjective
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becoming worse or inferior in condition, character, quality, value, etc..
A deteriorating house, whatever the cause, will have an adverse effect on your real estate investment.
Officials have warned of a deteriorating security situation in the disputed territory.
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disintegrating or wearing away.
If what you have underneath is fabric or fiberglass, I’d be concerned that deteriorating paint is letting ultraviolet rays do their worst to your aircraft.
Other Word Forms
Etymology
Origin of deteriorating
First recorded in 1680–90; deteriorate ( def. ) + -ing 2 ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When credit conditions start deteriorating, I like to “high grade” my portfolio.
From MarketWatch ● Oct. 1, 2026
Park advocates have long argued that the existing city allocation is inadequate, leaving neighborhoods with decaying recreation centers, deteriorating swimming pools and filthy park bathrooms.
From Los Angeles Times ● Oct. 1, 2026
Instead of deteriorating our world, the real world will get people to reinvest in the real.
From Slate ● Sep. 29, 2026
There were two further missed opportunities to reassess and re-triage the case by ambulance operators when the family described Lee's deteriorating condition.
From BBC ● Sep. 23, 2026
He regretted that his deteriorating health prevented him from attending the ceremonies in person and joining “the small band, the remnant of that host of worthies who joined with us on that day.”
From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.